rebdoniel – the same rambam that says that also says that one who works should spend 3 hours a day working and 9 hours a day learning (will ask husband for exact location of that quote if you’d like) – find me non-kollel guys in this day & age who actually do that.
Besides for that, it’s you and several others in this forum versus all the main gedolim in the last 50 years!! I have heard that it’s a horaas sha’ah in order for torah to survive in our generation(s) before mashiach since it’s become such a “filthy” world out there, but even if I “heard wrong” I don’t believe we have enough personal daas torah to argue with some of the greatest torah minds of the last generation or two who surely know what the torah would say is best for our generation, and they surely know all the sources you quoted better that you & I. Agreed it is not for everybody, and that some pathetic people (not the gedolim) clearly push their agendas in ways that cannot be called proper middos or good chinuch (and often sadly quite the opposite) but that’s not to say the idea isn’t correct for those who could pull it off